ata_xpt.c revision 220602
1/*- 2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/cam/ata/ata_xpt.c 220602 2011-04-13 16:20:54Z mav $"); 29 30#include <sys/param.h> 31#include <sys/bus.h> 32#include <sys/endian.h> 33#include <sys/systm.h> 34#include <sys/types.h> 35#include <sys/malloc.h> 36#include <sys/kernel.h> 37#include <sys/time.h> 38#include <sys/conf.h> 39#include <sys/fcntl.h> 40#include <sys/interrupt.h> 41#include <sys/sbuf.h> 42 43#include <sys/lock.h> 44#include <sys/mutex.h> 45#include <sys/sysctl.h> 46 47#include <cam/cam.h> 48#include <cam/cam_ccb.h> 49#include <cam/cam_queue.h> 50#include <cam/cam_periph.h> 51#include <cam/cam_sim.h> 52#include <cam/cam_xpt.h> 53#include <cam/cam_xpt_sim.h> 54#include <cam/cam_xpt_periph.h> 55#include <cam/cam_xpt_internal.h> 56#include <cam/cam_debug.h> 57 58#include <cam/scsi/scsi_all.h> 59#include <cam/scsi/scsi_message.h> 60#include <cam/ata/ata_all.h> 61#include <machine/stdarg.h> /* for xpt_print below */ 62#include "opt_cam.h" 63 64struct ata_quirk_entry { 65 struct scsi_inquiry_pattern inq_pat; 66 u_int8_t quirks; 67#define CAM_QUIRK_MAXTAGS 0x01 68 u_int maxtags; 69}; 70 71static periph_init_t probe_periph_init; 72 73static struct periph_driver probe_driver = 74{ 75 probe_periph_init, "aprobe", 76 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 77 CAM_PERIPH_DRV_EARLY 78}; 79 80PERIPHDRIVER_DECLARE(aprobe, probe_driver); 81 82typedef enum { 83 PROBE_RESET, 84 PROBE_IDENTIFY, 85 PROBE_SPINUP, 86 PROBE_SETMODE, 87 PROBE_SETPM, 88 PROBE_SETAPST, 89 PROBE_SETDMAAA, 90 PROBE_SETAN, 91 PROBE_SET_MULTI, 92 PROBE_INQUIRY, 93 PROBE_FULL_INQUIRY, 94 PROBE_PM_PID, 95 PROBE_PM_PRV, 96 PROBE_INVALID 97} probe_action; 98 99static char *probe_action_text[] = { 100 "PROBE_RESET", 101 "PROBE_IDENTIFY", 102 "PROBE_SPINUP", 103 "PROBE_SETMODE", 104 "PROBE_SETPM", 105 "PROBE_SETAPST", 106 "PROBE_SETDMAAA", 107 "PROBE_SETAN", 108 "PROBE_SET_MULTI", 109 "PROBE_INQUIRY", 110 "PROBE_FULL_INQUIRY", 111 "PROBE_PM_PID", 112 "PROBE_PM_PRV", 113 "PROBE_INVALID" 114}; 115 116#define PROBE_SET_ACTION(softc, newaction) \ 117do { \ 118 char **text; \ 119 text = probe_action_text; \ 120 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_INFO, \ 121 ("Probe %s to %s\n", text[(softc)->action], \ 122 text[(newaction)])); \ 123 (softc)->action = (newaction); \ 124} while(0) 125 126typedef enum { 127 PROBE_NO_ANNOUNCE = 0x04 128} probe_flags; 129 130typedef struct { 131 TAILQ_HEAD(, ccb_hdr) request_ccbs; 132 struct ata_params ident_data; 133 probe_action action; 134 probe_flags flags; 135 uint32_t pm_pid; 136 uint32_t pm_prv; 137 int restart; 138 int spinup; 139 int faults; 140 u_int caps; 141 struct cam_periph *periph; 142} probe_softc; 143 144static struct ata_quirk_entry ata_quirk_table[] = 145{ 146 { 147 /* Default tagged queuing parameters for all devices */ 148 { 149 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 150 /*vendor*/"*", /*product*/"*", /*revision*/"*" 151 }, 152 /*quirks*/0, /*maxtags*/0 153 }, 154}; 155 156static const int ata_quirk_table_size = 157 sizeof(ata_quirk_table) / sizeof(*ata_quirk_table); 158 159static cam_status proberegister(struct cam_periph *periph, 160 void *arg); 161static void probeschedule(struct cam_periph *probe_periph); 162static void probestart(struct cam_periph *periph, union ccb *start_ccb); 163//static void proberequestdefaultnegotiation(struct cam_periph *periph); 164//static int proberequestbackoff(struct cam_periph *periph, 165// struct cam_ed *device); 166static void probedone(struct cam_periph *periph, union ccb *done_ccb); 167static void probecleanup(struct cam_periph *periph); 168static void ata_find_quirk(struct cam_ed *device); 169static void ata_scan_bus(struct cam_periph *periph, union ccb *ccb); 170static void ata_scan_lun(struct cam_periph *periph, 171 struct cam_path *path, cam_flags flags, 172 union ccb *ccb); 173static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 174static struct cam_ed * 175 ata_alloc_device(struct cam_eb *bus, struct cam_et *target, 176 lun_id_t lun_id); 177static void ata_device_transport(struct cam_path *path); 178static void ata_set_transfer_settings(struct ccb_trans_settings *cts, 179 struct cam_ed *device, 180 int async_update); 181static void ata_dev_async(u_int32_t async_code, 182 struct cam_eb *bus, 183 struct cam_et *target, 184 struct cam_ed *device, 185 void *async_arg); 186static void ata_action(union ccb *start_ccb); 187static void ata_announce_periph(struct cam_periph *periph); 188 189static struct xpt_xport ata_xport = { 190 .alloc_device = ata_alloc_device, 191 .action = ata_action, 192 .async = ata_dev_async, 193 .announce = ata_announce_periph, 194}; 195 196struct xpt_xport * 197ata_get_xport(void) 198{ 199 return (&ata_xport); 200} 201 202static void 203probe_periph_init() 204{ 205} 206 207static cam_status 208proberegister(struct cam_periph *periph, void *arg) 209{ 210 union ccb *request_ccb; /* CCB representing the probe request */ 211 cam_status status; 212 probe_softc *softc; 213 214 request_ccb = (union ccb *)arg; 215 if (periph == NULL) { 216 printf("proberegister: periph was NULL!!\n"); 217 return(CAM_REQ_CMP_ERR); 218 } 219 220 if (request_ccb == NULL) { 221 printf("proberegister: no probe CCB, " 222 "can't register device\n"); 223 return(CAM_REQ_CMP_ERR); 224 } 225 226 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_ZERO | M_NOWAIT); 227 228 if (softc == NULL) { 229 printf("proberegister: Unable to probe new device. " 230 "Unable to allocate softc\n"); 231 return(CAM_REQ_CMP_ERR); 232 } 233 TAILQ_INIT(&softc->request_ccbs); 234 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 235 periph_links.tqe); 236 softc->flags = 0; 237 periph->softc = softc; 238 softc->periph = periph; 239 softc->action = PROBE_INVALID; 240 status = cam_periph_acquire(periph); 241 if (status != CAM_REQ_CMP) { 242 return (status); 243 } 244 /* 245 * Ensure nobody slip in until probe finish. 246 */ 247 cam_freeze_devq_arg(periph->path, 248 RELSIM_RELEASE_RUNLEVEL, CAM_RL_XPT + 1); 249 probeschedule(periph); 250 return(CAM_REQ_CMP); 251} 252 253static void 254probeschedule(struct cam_periph *periph) 255{ 256 union ccb *ccb; 257 probe_softc *softc; 258 259 softc = (probe_softc *)periph->softc; 260 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 261 262 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) || 263 periph->path->device->protocol == PROTO_SATAPM) 264 PROBE_SET_ACTION(softc, PROBE_RESET); 265 else 266 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 267 268 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 269 softc->flags |= PROBE_NO_ANNOUNCE; 270 else 271 softc->flags &= ~PROBE_NO_ANNOUNCE; 272 273 xpt_schedule(periph, CAM_PRIORITY_XPT); 274} 275 276static void 277probestart(struct cam_periph *periph, union ccb *start_ccb) 278{ 279 struct ccb_trans_settings cts; 280 struct ccb_ataio *ataio; 281 struct ccb_scsiio *csio; 282 probe_softc *softc; 283 struct cam_path *path; 284 struct ata_params *ident_buf; 285 286 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 287 288 softc = (probe_softc *)periph->softc; 289 path = start_ccb->ccb_h.path; 290 ataio = &start_ccb->ataio; 291 csio = &start_ccb->csio; 292 ident_buf = &periph->path->device->ident_data; 293 294 if (softc->restart) { 295 softc->restart = 0; 296 if ((path->device->flags & CAM_DEV_UNCONFIGURED) || 297 path->device->protocol == PROTO_SATAPM) 298 softc->action = PROBE_RESET; 299 else 300 softc->action = PROBE_IDENTIFY; 301 } 302 switch (softc->action) { 303 case PROBE_RESET: 304 cam_fill_ataio(ataio, 305 0, 306 probedone, 307 /*flags*/CAM_DIR_NONE, 308 0, 309 /*data_ptr*/NULL, 310 /*dxfer_len*/0, 311 15 * 1000); 312 ata_reset_cmd(ataio); 313 break; 314 case PROBE_IDENTIFY: 315 cam_fill_ataio(ataio, 316 1, 317 probedone, 318 /*flags*/CAM_DIR_IN, 319 0, 320 /*data_ptr*/(u_int8_t *)&softc->ident_data, 321 /*dxfer_len*/sizeof(softc->ident_data), 322 30 * 1000); 323 if (periph->path->device->protocol == PROTO_ATA) 324 ata_28bit_cmd(ataio, ATA_ATA_IDENTIFY, 0, 0, 0); 325 else 326 ata_28bit_cmd(ataio, ATA_ATAPI_IDENTIFY, 0, 0, 0); 327 break; 328 case PROBE_SPINUP: 329 if (bootverbose) 330 xpt_print(path, "Spinning up device\n"); 331 cam_fill_ataio(ataio, 332 1, 333 probedone, 334 /*flags*/CAM_DIR_NONE | CAM_HIGH_POWER, 335 0, 336 /*data_ptr*/NULL, 337 /*dxfer_len*/0, 338 30 * 1000); 339 ata_28bit_cmd(ataio, ATA_SETFEATURES, ATA_SF_PUIS_SPINUP, 0, 0); 340 break; 341 case PROBE_SETMODE: 342 { 343 int mode, wantmode; 344 345 mode = 0; 346 /* Fetch user modes from SIM. */ 347 bzero(&cts, sizeof(cts)); 348 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 349 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 350 cts.type = CTS_TYPE_USER_SETTINGS; 351 xpt_action((union ccb *)&cts); 352 if (path->device->transport == XPORT_ATA) { 353 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_MODE) 354 mode = cts.xport_specific.ata.mode; 355 } else { 356 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_MODE) 357 mode = cts.xport_specific.sata.mode; 358 } 359negotiate: 360 /* Honor device capabilities. */ 361 wantmode = mode = ata_max_mode(ident_buf, mode); 362 /* Report modes to SIM. */ 363 bzero(&cts, sizeof(cts)); 364 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 365 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 366 cts.type = CTS_TYPE_CURRENT_SETTINGS; 367 if (path->device->transport == XPORT_ATA) { 368 cts.xport_specific.ata.mode = mode; 369 cts.xport_specific.ata.valid = CTS_ATA_VALID_MODE; 370 } else { 371 cts.xport_specific.sata.mode = mode; 372 cts.xport_specific.sata.valid = CTS_SATA_VALID_MODE; 373 } 374 xpt_action((union ccb *)&cts); 375 /* Fetch current modes from SIM. */ 376 bzero(&cts, sizeof(cts)); 377 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 378 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 379 cts.type = CTS_TYPE_CURRENT_SETTINGS; 380 xpt_action((union ccb *)&cts); 381 if (path->device->transport == XPORT_ATA) { 382 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_MODE) 383 mode = cts.xport_specific.ata.mode; 384 } else { 385 if (cts.xport_specific.ata.valid & CTS_SATA_VALID_MODE) 386 mode = cts.xport_specific.sata.mode; 387 } 388 /* If SIM disagree - renegotiate. */ 389 if (mode != wantmode) 390 goto negotiate; 391 cam_fill_ataio(ataio, 392 1, 393 probedone, 394 /*flags*/CAM_DIR_NONE, 395 0, 396 /*data_ptr*/NULL, 397 /*dxfer_len*/0, 398 30 * 1000); 399 ata_28bit_cmd(ataio, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode); 400 break; 401 } 402 case PROBE_SETPM: 403 cam_fill_ataio(ataio, 404 1, 405 probedone, 406 CAM_DIR_NONE, 407 0, 408 NULL, 409 0, 410 30*1000); 411 ata_28bit_cmd(ataio, ATA_SETFEATURES, 412 (softc->caps & CTS_SATA_CAPS_H_PMREQ) ? 0x10 : 0x90, 413 0, 0x03); 414 break; 415 case PROBE_SETAPST: 416 cam_fill_ataio(ataio, 417 1, 418 probedone, 419 CAM_DIR_NONE, 420 0, 421 NULL, 422 0, 423 30*1000); 424 ata_28bit_cmd(ataio, ATA_SETFEATURES, 425 (softc->caps & CTS_SATA_CAPS_H_APST) ? 0x10 : 0x90, 426 0, 0x07); 427 break; 428 case PROBE_SETDMAAA: 429 cam_fill_ataio(ataio, 430 1, 431 probedone, 432 CAM_DIR_NONE, 433 0, 434 NULL, 435 0, 436 30*1000); 437 ata_28bit_cmd(ataio, ATA_SETFEATURES, 438 (softc->caps & CTS_SATA_CAPS_H_DMAAA) ? 0x10 : 0x90, 439 0, 0x02); 440 break; 441 case PROBE_SETAN: 442 cam_fill_ataio(ataio, 443 1, 444 probedone, 445 CAM_DIR_NONE, 446 0, 447 NULL, 448 0, 449 30*1000); 450 ata_28bit_cmd(ataio, ATA_SETFEATURES, 451 (softc->caps & CTS_SATA_CAPS_H_AN) ? 0x10 : 0x90, 452 0, 0x05); 453 break; 454 case PROBE_SET_MULTI: 455 { 456 u_int sectors, bytecount; 457 458 bytecount = 8192; /* SATA maximum */ 459 /* Fetch user bytecount from SIM. */ 460 bzero(&cts, sizeof(cts)); 461 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 462 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 463 cts.type = CTS_TYPE_USER_SETTINGS; 464 xpt_action((union ccb *)&cts); 465 if (path->device->transport == XPORT_ATA) { 466 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT) 467 bytecount = cts.xport_specific.ata.bytecount; 468 } else { 469 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 470 bytecount = cts.xport_specific.sata.bytecount; 471 } 472 /* Honor device capabilities. */ 473 sectors = max(1, min(ident_buf->sectors_intr & 0xff, 474 bytecount / ata_logical_sector_size(ident_buf))); 475 /* Report bytecount to SIM. */ 476 bzero(&cts, sizeof(cts)); 477 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 478 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 479 cts.type = CTS_TYPE_CURRENT_SETTINGS; 480 if (path->device->transport == XPORT_ATA) { 481 cts.xport_specific.ata.bytecount = sectors * 482 ata_logical_sector_size(ident_buf); 483 cts.xport_specific.ata.valid = CTS_ATA_VALID_BYTECOUNT; 484 } else { 485 cts.xport_specific.sata.bytecount = sectors * 486 ata_logical_sector_size(ident_buf); 487 cts.xport_specific.sata.valid = CTS_SATA_VALID_BYTECOUNT; 488 } 489 xpt_action((union ccb *)&cts); 490 /* Fetch current bytecount from SIM. */ 491 bzero(&cts, sizeof(cts)); 492 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 493 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 494 cts.type = CTS_TYPE_CURRENT_SETTINGS; 495 xpt_action((union ccb *)&cts); 496 if (path->device->transport == XPORT_ATA) { 497 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT) 498 bytecount = cts.xport_specific.ata.bytecount; 499 } else { 500 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 501 bytecount = cts.xport_specific.sata.bytecount; 502 } 503 sectors = bytecount / ata_logical_sector_size(ident_buf); 504 505 cam_fill_ataio(ataio, 506 1, 507 probedone, 508 CAM_DIR_NONE, 509 0, 510 NULL, 511 0, 512 30*1000); 513 ata_28bit_cmd(ataio, ATA_SET_MULTI, 0, 0, sectors); 514 break; 515 } 516 case PROBE_INQUIRY: 517 { 518 u_int bytecount; 519 520 bytecount = 8192; /* SATA maximum */ 521 /* Fetch user bytecount from SIM. */ 522 bzero(&cts, sizeof(cts)); 523 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 524 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 525 cts.type = CTS_TYPE_USER_SETTINGS; 526 xpt_action((union ccb *)&cts); 527 if (path->device->transport == XPORT_ATA) { 528 if (cts.xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT) 529 bytecount = cts.xport_specific.ata.bytecount; 530 } else { 531 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 532 bytecount = cts.xport_specific.sata.bytecount; 533 } 534 /* Honor device capabilities. */ 535 bytecount &= ~1; 536 bytecount = max(2, min(65534, bytecount)); 537 if (ident_buf->satacapabilities != 0x0000 && 538 ident_buf->satacapabilities != 0xffff) { 539 bytecount = min(8192, bytecount); 540 } 541 /* Report bytecount to SIM. */ 542 bzero(&cts, sizeof(cts)); 543 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 544 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 545 cts.type = CTS_TYPE_CURRENT_SETTINGS; 546 if (path->device->transport == XPORT_ATA) { 547 cts.xport_specific.ata.bytecount = bytecount; 548 cts.xport_specific.ata.valid = CTS_ATA_VALID_BYTECOUNT; 549 } else { 550 cts.xport_specific.sata.bytecount = bytecount; 551 cts.xport_specific.sata.valid = CTS_SATA_VALID_BYTECOUNT; 552 } 553 xpt_action((union ccb *)&cts); 554 /* FALLTHROUGH */ 555 } 556 case PROBE_FULL_INQUIRY: 557 { 558 u_int inquiry_len; 559 struct scsi_inquiry_data *inq_buf = 560 &periph->path->device->inq_data; 561 562 if (softc->action == PROBE_INQUIRY) 563 inquiry_len = SHORT_INQUIRY_LENGTH; 564 else 565 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 566 /* 567 * Some parallel SCSI devices fail to send an 568 * ignore wide residue message when dealing with 569 * odd length inquiry requests. Round up to be 570 * safe. 571 */ 572 inquiry_len = roundup2(inquiry_len, 2); 573 scsi_inquiry(csio, 574 /*retries*/1, 575 probedone, 576 MSG_SIMPLE_Q_TAG, 577 (u_int8_t *)inq_buf, 578 inquiry_len, 579 /*evpd*/FALSE, 580 /*page_code*/0, 581 SSD_MIN_SIZE, 582 /*timeout*/60 * 1000); 583 break; 584 } 585 case PROBE_PM_PID: 586 cam_fill_ataio(ataio, 587 1, 588 probedone, 589 /*flags*/CAM_DIR_NONE, 590 0, 591 /*data_ptr*/NULL, 592 /*dxfer_len*/0, 593 10 * 1000); 594 ata_pm_read_cmd(ataio, 0, 15); 595 break; 596 case PROBE_PM_PRV: 597 cam_fill_ataio(ataio, 598 1, 599 probedone, 600 /*flags*/CAM_DIR_NONE, 601 0, 602 /*data_ptr*/NULL, 603 /*dxfer_len*/0, 604 10 * 1000); 605 ata_pm_read_cmd(ataio, 1, 15); 606 break; 607 case PROBE_INVALID: 608 CAM_DEBUG(path, CAM_DEBUG_INFO, 609 ("probestart: invalid action state\n")); 610 default: 611 break; 612 } 613 xpt_action(start_ccb); 614} 615#if 0 616static void 617proberequestdefaultnegotiation(struct cam_periph *periph) 618{ 619 struct ccb_trans_settings cts; 620 621 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 622 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 623 cts.type = CTS_TYPE_USER_SETTINGS; 624 xpt_action((union ccb *)&cts); 625 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 626 return; 627 } 628 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 629 cts.type = CTS_TYPE_CURRENT_SETTINGS; 630 xpt_action((union ccb *)&cts); 631} 632 633/* 634 * Backoff Negotiation Code- only pertinent for SPI devices. 635 */ 636static int 637proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 638{ 639 struct ccb_trans_settings cts; 640 struct ccb_trans_settings_spi *spi; 641 642 memset(&cts, 0, sizeof (cts)); 643 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 644 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 645 cts.type = CTS_TYPE_CURRENT_SETTINGS; 646 xpt_action((union ccb *)&cts); 647 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 648 if (bootverbose) { 649 xpt_print(periph->path, 650 "failed to get current device settings\n"); 651 } 652 return (0); 653 } 654 if (cts.transport != XPORT_SPI) { 655 if (bootverbose) { 656 xpt_print(periph->path, "not SPI transport\n"); 657 } 658 return (0); 659 } 660 spi = &cts.xport_specific.spi; 661 662 /* 663 * We cannot renegotiate sync rate if we don't have one. 664 */ 665 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 666 if (bootverbose) { 667 xpt_print(periph->path, "no sync rate known\n"); 668 } 669 return (0); 670 } 671 672 /* 673 * We'll assert that we don't have to touch PPR options- the 674 * SIM will see what we do with period and offset and adjust 675 * the PPR options as appropriate. 676 */ 677 678 /* 679 * A sync rate with unknown or zero offset is nonsensical. 680 * A sync period of zero means Async. 681 */ 682 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 683 || spi->sync_offset == 0 || spi->sync_period == 0) { 684 if (bootverbose) { 685 xpt_print(periph->path, "no sync rate available\n"); 686 } 687 return (0); 688 } 689 690 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 691 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 692 ("hit async: giving up on DV\n")); 693 return (0); 694 } 695 696 697 /* 698 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 699 * We don't try to remember 'last' settings to see if the SIM actually 700 * gets into the speed we want to set. We check on the SIM telling 701 * us that a requested speed is bad, but otherwise don't try and 702 * check the speed due to the asynchronous and handshake nature 703 * of speed setting. 704 */ 705 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 706 for (;;) { 707 spi->sync_period++; 708 if (spi->sync_period >= 0xf) { 709 spi->sync_period = 0; 710 spi->sync_offset = 0; 711 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 712 ("setting to async for DV\n")); 713 /* 714 * Once we hit async, we don't want to try 715 * any more settings. 716 */ 717 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 718 } else if (bootverbose) { 719 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 720 ("DV: period 0x%x\n", spi->sync_period)); 721 printf("setting period to 0x%x\n", spi->sync_period); 722 } 723 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 724 cts.type = CTS_TYPE_CURRENT_SETTINGS; 725 xpt_action((union ccb *)&cts); 726 if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 727 break; 728 } 729 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 730 ("DV: failed to set period 0x%x\n", spi->sync_period)); 731 if (spi->sync_period == 0) { 732 return (0); 733 } 734 } 735 return (1); 736} 737#endif 738static void 739probedone(struct cam_periph *periph, union ccb *done_ccb) 740{ 741 struct ccb_trans_settings cts; 742 struct ata_params *ident_buf; 743 probe_softc *softc; 744 struct cam_path *path; 745 cam_status status; 746 u_int32_t priority; 747 u_int caps; 748 int found = 1; 749 750 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 751 752 softc = (probe_softc *)periph->softc; 753 path = done_ccb->ccb_h.path; 754 priority = done_ccb->ccb_h.pinfo.priority; 755 ident_buf = &path->device->ident_data; 756 757 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 758 if (softc->restart) { 759 if (bootverbose) { 760 cam_error_print(done_ccb, 761 CAM_ESF_ALL, CAM_EPF_ALL); 762 } 763 } else if (cam_periph_error(done_ccb, 0, 0, NULL) == ERESTART) 764 return; 765 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 766 /* Don't wedge the queue */ 767 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 768 /*run_queue*/TRUE); 769 } 770 status = done_ccb->ccb_h.status & CAM_STATUS_MASK; 771 if (softc->restart) { 772 softc->faults++; 773 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == 774 CAM_CMD_TIMEOUT) 775 softc->faults += 4; 776 if (softc->faults < 10) 777 goto done; 778 else 779 softc->restart = 0; 780 781 /* Old PIO2 devices may not support mode setting. */ 782 } else if (softc->action == PROBE_SETMODE && 783 status == CAM_ATA_STATUS_ERROR && 784 ata_max_pmode(ident_buf) <= ATA_PIO2 && 785 (ident_buf->capabilities1 & ATA_SUPPORT_IORDY) == 0) { 786 goto noerror; 787 788 /* 789 * Some old WD SATA disks report supported and enabled 790 * device-initiated interface power management, but return 791 * ABORT on attempt to disable it. 792 */ 793 } else if (softc->action == PROBE_SETPM && 794 status == CAM_ATA_STATUS_ERROR) { 795 goto noerror; 796 797 /* 798 * Some HP SATA disks report supported DMA Auto-Activation, 799 * but return ABORT on attempt to enable it. 800 */ 801 } else if (softc->action == PROBE_SETDMAAA && 802 status == CAM_ATA_STATUS_ERROR) { 803 goto noerror; 804 } 805 806 /* 807 * If we get to this point, we got an error status back 808 * from the inquiry and the error status doesn't require 809 * automatically retrying the command. Therefore, the 810 * inquiry failed. If we had inquiry information before 811 * for this device, but this latest inquiry command failed, 812 * the device has probably gone away. If this device isn't 813 * already marked unconfigured, notify the peripheral 814 * drivers that this device is no more. 815 */ 816device_fail: if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 817 xpt_async(AC_LOST_DEVICE, path, NULL); 818 found = 0; 819 goto done; 820 } 821noerror: 822 if (softc->restart) 823 goto done; 824 switch (softc->action) { 825 case PROBE_RESET: 826 { 827 int sign = (done_ccb->ataio.res.lba_high << 8) + 828 done_ccb->ataio.res.lba_mid; 829 if (bootverbose) 830 xpt_print(path, "SIGNATURE: %04x\n", sign); 831 if (sign == 0x0000 && 832 done_ccb->ccb_h.target_id != 15) { 833 path->device->protocol = PROTO_ATA; 834 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 835 } else if (sign == 0x9669 && 836 done_ccb->ccb_h.target_id == 15) { 837 /* Report SIM that PM is present. */ 838 bzero(&cts, sizeof(cts)); 839 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 840 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 841 cts.type = CTS_TYPE_CURRENT_SETTINGS; 842 cts.xport_specific.sata.pm_present = 1; 843 cts.xport_specific.sata.valid = CTS_SATA_VALID_PM; 844 xpt_action((union ccb *)&cts); 845 path->device->protocol = PROTO_SATAPM; 846 PROBE_SET_ACTION(softc, PROBE_PM_PID); 847 } else if (sign == 0xeb14 && 848 done_ccb->ccb_h.target_id != 15) { 849 path->device->protocol = PROTO_SCSI; 850 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 851 } else { 852 if (done_ccb->ccb_h.target_id != 15) { 853 xpt_print(path, 854 "Unexpected signature 0x%04x\n", sign); 855 } 856 goto device_fail; 857 } 858 xpt_release_ccb(done_ccb); 859 xpt_schedule(periph, priority); 860 return; 861 } 862 case PROBE_IDENTIFY: 863 { 864 struct ccb_pathinq cpi; 865 int16_t *ptr; 866 int changed = 1; 867 868 ident_buf = &softc->ident_data; 869 for (ptr = (int16_t *)ident_buf; 870 ptr < (int16_t *)ident_buf + sizeof(struct ata_params)/2; ptr++) { 871 *ptr = le16toh(*ptr); 872 } 873 if (strncmp(ident_buf->model, "FX", 2) && 874 strncmp(ident_buf->model, "NEC", 3) && 875 strncmp(ident_buf->model, "Pioneer", 7) && 876 strncmp(ident_buf->model, "SHARP", 5)) { 877 ata_bswap(ident_buf->model, sizeof(ident_buf->model)); 878 ata_bswap(ident_buf->revision, sizeof(ident_buf->revision)); 879 ata_bswap(ident_buf->serial, sizeof(ident_buf->serial)); 880 } 881 ata_btrim(ident_buf->model, sizeof(ident_buf->model)); 882 ata_bpack(ident_buf->model, ident_buf->model, sizeof(ident_buf->model)); 883 ata_btrim(ident_buf->revision, sizeof(ident_buf->revision)); 884 ata_bpack(ident_buf->revision, ident_buf->revision, sizeof(ident_buf->revision)); 885 ata_btrim(ident_buf->serial, sizeof(ident_buf->serial)); 886 ata_bpack(ident_buf->serial, ident_buf->serial, sizeof(ident_buf->serial)); 887 /* Device may need spin-up before IDENTIFY become valid. */ 888 if ((ident_buf->specconf == 0x37c8 || 889 ident_buf->specconf == 0x738c) && 890 ((ident_buf->config & ATA_RESP_INCOMPLETE) || 891 softc->spinup == 0)) { 892 PROBE_SET_ACTION(softc, PROBE_SPINUP); 893 xpt_release_ccb(done_ccb); 894 xpt_schedule(periph, priority); 895 return; 896 } 897 ident_buf = &path->device->ident_data; 898 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) { 899 /* Check that it is the same device. */ 900 if (bcmp(softc->ident_data.model, ident_buf->model, 901 sizeof(ident_buf->model)) || 902 bcmp(softc->ident_data.revision, ident_buf->revision, 903 sizeof(ident_buf->revision)) || 904 bcmp(softc->ident_data.serial, ident_buf->serial, 905 sizeof(ident_buf->serial))) { 906 /* Device changed. */ 907 xpt_async(AC_LOST_DEVICE, path, NULL); 908 } else { 909 bcopy(&softc->ident_data, ident_buf, sizeof(struct ata_params)); 910 changed = 0; 911 } 912 } 913 if (changed) { 914 bcopy(&softc->ident_data, ident_buf, sizeof(struct ata_params)); 915 /* Clean up from previous instance of this device */ 916 if (path->device->serial_num != NULL) { 917 free(path->device->serial_num, M_CAMXPT); 918 path->device->serial_num = NULL; 919 path->device->serial_num_len = 0; 920 } 921 path->device->serial_num = 922 (u_int8_t *)malloc((sizeof(ident_buf->serial) + 1), 923 M_CAMXPT, M_NOWAIT); 924 if (path->device->serial_num != NULL) { 925 bcopy(ident_buf->serial, 926 path->device->serial_num, 927 sizeof(ident_buf->serial)); 928 path->device->serial_num[sizeof(ident_buf->serial)] 929 = '\0'; 930 path->device->serial_num_len = 931 strlen(path->device->serial_num); 932 } 933 934 path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID; 935 } 936 if (ident_buf->satacapabilities & ATA_SUPPORT_NCQ) { 937 path->device->mintags = path->device->maxtags = 938 ATA_QUEUE_LEN(ident_buf->queue) + 1; 939 } 940 ata_find_quirk(path->device); 941 if (path->device->mintags != 0 && 942 path->bus->sim->max_tagged_dev_openings != 0) { 943 /* Check if the SIM does not want queued commands. */ 944 bzero(&cpi, sizeof(cpi)); 945 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 946 cpi.ccb_h.func_code = XPT_PATH_INQ; 947 xpt_action((union ccb *)&cpi); 948 if (cpi.ccb_h.status == CAM_REQ_CMP && 949 (cpi.hba_inquiry & PI_TAG_ABLE)) { 950 /* Report SIM which tags are allowed. */ 951 bzero(&cts, sizeof(cts)); 952 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 953 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 954 cts.type = CTS_TYPE_CURRENT_SETTINGS; 955 cts.xport_specific.sata.tags = path->device->maxtags; 956 cts.xport_specific.sata.valid = CTS_SATA_VALID_TAGS; 957 xpt_action((union ccb *)&cts); 958 /* Reconfigure queues for tagged queueing. */ 959 xpt_start_tags(path); 960 } 961 } 962 ata_device_transport(path); 963 PROBE_SET_ACTION(softc, PROBE_SETMODE); 964 xpt_release_ccb(done_ccb); 965 xpt_schedule(periph, priority); 966 return; 967 } 968 case PROBE_SPINUP: 969 if (bootverbose) 970 xpt_print(path, "Spin-up done\n"); 971 softc->spinup = 1; 972 PROBE_SET_ACTION(softc, PROBE_IDENTIFY); 973 xpt_release_ccb(done_ccb); 974 xpt_schedule(periph, priority); 975 return; 976 case PROBE_SETMODE: 977 if (path->device->transport != XPORT_SATA) 978 goto notsata; 979 /* Set supported bits. */ 980 bzero(&cts, sizeof(cts)); 981 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 982 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 983 cts.type = CTS_TYPE_CURRENT_SETTINGS; 984 xpt_action((union ccb *)&cts); 985 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 986 caps = cts.xport_specific.sata.caps & CTS_SATA_CAPS_H; 987 else 988 caps = 0; 989 if (ident_buf->satacapabilities != 0xffff) { 990 if (ident_buf->satacapabilities & ATA_SUPPORT_IFPWRMNGTRCV) 991 caps |= CTS_SATA_CAPS_D_PMREQ; 992 if (ident_buf->satacapabilities & ATA_SUPPORT_HAPST) 993 caps |= CTS_SATA_CAPS_D_APST; 994 } 995 /* Mask unwanted bits. */ 996 bzero(&cts, sizeof(cts)); 997 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 998 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 999 cts.type = CTS_TYPE_USER_SETTINGS; 1000 xpt_action((union ccb *)&cts); 1001 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 1002 caps &= cts.xport_specific.sata.caps; 1003 else 1004 caps = 0; 1005 /* Store result to SIM. */ 1006 bzero(&cts, sizeof(cts)); 1007 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 1008 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1009 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1010 cts.xport_specific.sata.caps = caps; 1011 cts.xport_specific.sata.valid = CTS_SATA_VALID_CAPS; 1012 xpt_action((union ccb *)&cts); 1013 softc->caps = caps; 1014 if ((ident_buf->satasupport & ATA_SUPPORT_IFPWRMNGT) && 1015 (!(softc->caps & CTS_SATA_CAPS_H_PMREQ)) != 1016 (!(ident_buf->sataenabled & ATA_SUPPORT_IFPWRMNGT))) { 1017 PROBE_SET_ACTION(softc, PROBE_SETPM); 1018 xpt_release_ccb(done_ccb); 1019 xpt_schedule(periph, priority); 1020 return; 1021 } 1022 /* FALLTHROUGH */ 1023 case PROBE_SETPM: 1024 if (ident_buf->satacapabilities != 0xffff && 1025 (ident_buf->satacapabilities & ATA_SUPPORT_DAPST) && 1026 (!(softc->caps & CTS_SATA_CAPS_H_APST)) != 1027 (!(ident_buf->sataenabled & ATA_ENABLED_DAPST))) { 1028 PROBE_SET_ACTION(softc, PROBE_SETAPST); 1029 xpt_release_ccb(done_ccb); 1030 xpt_schedule(periph, priority); 1031 return; 1032 } 1033 /* FALLTHROUGH */ 1034 case PROBE_SETAPST: 1035 if ((ident_buf->satasupport & ATA_SUPPORT_AUTOACTIVATE) && 1036 (!(softc->caps & CTS_SATA_CAPS_H_DMAAA)) != 1037 (!(ident_buf->sataenabled & ATA_SUPPORT_AUTOACTIVATE))) { 1038 PROBE_SET_ACTION(softc, PROBE_SETDMAAA); 1039 xpt_release_ccb(done_ccb); 1040 xpt_schedule(periph, priority); 1041 return; 1042 } 1043 /* FALLTHROUGH */ 1044 case PROBE_SETDMAAA: 1045 if ((ident_buf->satasupport & ATA_SUPPORT_ASYNCNOTIF) && 1046 (!(softc->caps & CTS_SATA_CAPS_H_AN)) != 1047 (!(ident_buf->sataenabled & ATA_SUPPORT_ASYNCNOTIF))) { 1048 PROBE_SET_ACTION(softc, PROBE_SETAN); 1049 xpt_release_ccb(done_ccb); 1050 xpt_schedule(periph, priority); 1051 return; 1052 } 1053 /* FALLTHROUGH */ 1054 case PROBE_SETAN: 1055notsata: 1056 if (path->device->protocol == PROTO_ATA) { 1057 PROBE_SET_ACTION(softc, PROBE_SET_MULTI); 1058 } else { 1059 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1060 } 1061 xpt_release_ccb(done_ccb); 1062 xpt_schedule(periph, priority); 1063 return; 1064 case PROBE_SET_MULTI: 1065 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 1066 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1067 xpt_acquire_device(path->device); 1068 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1069 xpt_action(done_ccb); 1070 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1071 done_ccb); 1072 } 1073 break; 1074 case PROBE_INQUIRY: 1075 case PROBE_FULL_INQUIRY: 1076 { 1077 struct scsi_inquiry_data *inq_buf; 1078 u_int8_t periph_qual, len; 1079 1080 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1081 inq_buf = &path->device->inq_data; 1082 1083 periph_qual = SID_QUAL(inq_buf); 1084 1085 if (periph_qual != SID_QUAL_LU_CONNECTED) 1086 break; 1087 1088 /* 1089 * We conservatively request only 1090 * SHORT_INQUIRY_LEN bytes of inquiry 1091 * information during our first try 1092 * at sending an INQUIRY. If the device 1093 * has more information to give, 1094 * perform a second request specifying 1095 * the amount of information the device 1096 * is willing to give. 1097 */ 1098 len = inq_buf->additional_length 1099 + offsetof(struct scsi_inquiry_data, additional_length) + 1; 1100 if (softc->action == PROBE_INQUIRY 1101 && len > SHORT_INQUIRY_LENGTH) { 1102 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1103 xpt_release_ccb(done_ccb); 1104 xpt_schedule(periph, priority); 1105 return; 1106 } 1107 1108 ata_device_transport(path); 1109 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 1110 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1111 xpt_acquire_device(path->device); 1112 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1113 xpt_action(done_ccb); 1114 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, done_ccb); 1115 } 1116 break; 1117 } 1118 case PROBE_PM_PID: 1119 if ((path->device->flags & CAM_DEV_IDENTIFY_DATA_VALID) == 0) 1120 bzero(ident_buf, sizeof(*ident_buf)); 1121 softc->pm_pid = (done_ccb->ataio.res.lba_high << 24) + 1122 (done_ccb->ataio.res.lba_mid << 16) + 1123 (done_ccb->ataio.res.lba_low << 8) + 1124 done_ccb->ataio.res.sector_count; 1125 ((uint32_t *)ident_buf)[0] = softc->pm_pid; 1126 snprintf(ident_buf->model, sizeof(ident_buf->model), 1127 "Port Multiplier %08x", softc->pm_pid); 1128 PROBE_SET_ACTION(softc, PROBE_PM_PRV); 1129 xpt_release_ccb(done_ccb); 1130 xpt_schedule(periph, priority); 1131 return; 1132 case PROBE_PM_PRV: 1133 softc->pm_prv = (done_ccb->ataio.res.lba_high << 24) + 1134 (done_ccb->ataio.res.lba_mid << 16) + 1135 (done_ccb->ataio.res.lba_low << 8) + 1136 done_ccb->ataio.res.sector_count; 1137 ((uint32_t *)ident_buf)[1] = softc->pm_prv; 1138 snprintf(ident_buf->revision, sizeof(ident_buf->revision), 1139 "%04x", softc->pm_prv); 1140 path->device->flags |= CAM_DEV_IDENTIFY_DATA_VALID; 1141 /* Set supported bits. */ 1142 bzero(&cts, sizeof(cts)); 1143 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 1144 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1145 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1146 xpt_action((union ccb *)&cts); 1147 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 1148 caps = cts.xport_specific.sata.caps & CTS_SATA_CAPS_H; 1149 else 1150 caps = 0; 1151 /* All PMPs must support PM requests. */ 1152 caps |= CTS_SATA_CAPS_D_PMREQ; 1153 /* Mask unwanted bits. */ 1154 bzero(&cts, sizeof(cts)); 1155 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 1156 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1157 cts.type = CTS_TYPE_USER_SETTINGS; 1158 xpt_action((union ccb *)&cts); 1159 if (cts.xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 1160 caps &= cts.xport_specific.sata.caps; 1161 else 1162 caps = 0; 1163 /* Store result to SIM. */ 1164 bzero(&cts, sizeof(cts)); 1165 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 1166 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1167 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1168 cts.xport_specific.sata.caps = caps; 1169 cts.xport_specific.sata.valid = CTS_SATA_VALID_CAPS; 1170 xpt_action((union ccb *)&cts); 1171 softc->caps = caps; 1172 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 1173 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1174 xpt_acquire_device(path->device); 1175 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1176 xpt_action(done_ccb); 1177 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1178 done_ccb); 1179 } else { 1180 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1181 xpt_action(done_ccb); 1182 xpt_async(AC_SCSI_AEN, done_ccb->ccb_h.path, done_ccb); 1183 } 1184 break; 1185 case PROBE_INVALID: 1186 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_INFO, 1187 ("probedone: invalid action state\n")); 1188 default: 1189 break; 1190 } 1191done: 1192 if (softc->restart) { 1193 softc->restart = 0; 1194 xpt_release_ccb(done_ccb); 1195 probeschedule(periph); 1196 return; 1197 } 1198 xpt_release_ccb(done_ccb); 1199 while ((done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs))) { 1200 TAILQ_REMOVE(&softc->request_ccbs, 1201 &done_ccb->ccb_h, periph_links.tqe); 1202 done_ccb->ccb_h.status = found ? CAM_REQ_CMP : CAM_REQ_CMP_ERR; 1203 xpt_done(done_ccb); 1204 } 1205 cam_release_devq(periph->path, 1206 RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_XPT + 1, FALSE); 1207 cam_periph_invalidate(periph); 1208 cam_periph_release_locked(periph); 1209} 1210 1211static void 1212probecleanup(struct cam_periph *periph) 1213{ 1214 free(periph->softc, M_CAMXPT); 1215} 1216 1217static void 1218ata_find_quirk(struct cam_ed *device) 1219{ 1220 struct ata_quirk_entry *quirk; 1221 caddr_t match; 1222 1223 match = cam_quirkmatch((caddr_t)&device->ident_data, 1224 (caddr_t)ata_quirk_table, 1225 ata_quirk_table_size, 1226 sizeof(*ata_quirk_table), ata_identify_match); 1227 1228 if (match == NULL) 1229 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1230 1231 quirk = (struct ata_quirk_entry *)match; 1232 device->quirk = quirk; 1233 if (quirk->quirks & CAM_QUIRK_MAXTAGS) 1234 device->mintags = device->maxtags = quirk->maxtags; 1235} 1236 1237typedef struct { 1238 union ccb *request_ccb; 1239 struct ccb_pathinq *cpi; 1240 int counter; 1241} ata_scan_bus_info; 1242 1243/* 1244 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1245 * As the scan progresses, xpt_scan_bus is used as the 1246 * callback on completion function. 1247 */ 1248static void 1249ata_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1250{ 1251 struct cam_path *path; 1252 ata_scan_bus_info *scan_info; 1253 union ccb *work_ccb, *reset_ccb; 1254 cam_status status; 1255 1256 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1257 ("xpt_scan_bus\n")); 1258 switch (request_ccb->ccb_h.func_code) { 1259 case XPT_SCAN_BUS: 1260 case XPT_SCAN_TGT: 1261 /* Find out the characteristics of the bus */ 1262 work_ccb = xpt_alloc_ccb_nowait(); 1263 if (work_ccb == NULL) { 1264 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1265 xpt_done(request_ccb); 1266 return; 1267 } 1268 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1269 request_ccb->ccb_h.pinfo.priority); 1270 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1271 xpt_action(work_ccb); 1272 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1273 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1274 xpt_free_ccb(work_ccb); 1275 xpt_done(request_ccb); 1276 return; 1277 } 1278 1279 /* We may need to reset bus first, if we haven't done it yet. */ 1280 if ((work_ccb->cpi.hba_inquiry & 1281 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1282 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1283 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) { 1284 reset_ccb = xpt_alloc_ccb_nowait(); 1285 if (reset_ccb == NULL) { 1286 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1287 xpt_free_ccb(work_ccb); 1288 xpt_done(request_ccb); 1289 return; 1290 } 1291 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1292 CAM_PRIORITY_NONE); 1293 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1294 xpt_action(reset_ccb); 1295 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1296 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1297 xpt_free_ccb(reset_ccb); 1298 xpt_free_ccb(work_ccb); 1299 xpt_done(request_ccb); 1300 return; 1301 } 1302 xpt_free_ccb(reset_ccb); 1303 } 1304 1305 /* Save some state for use while we probe for devices */ 1306 scan_info = (ata_scan_bus_info *) 1307 malloc(sizeof(ata_scan_bus_info), M_CAMXPT, M_NOWAIT); 1308 if (scan_info == NULL) { 1309 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1310 xpt_free_ccb(work_ccb); 1311 xpt_done(request_ccb); 1312 return; 1313 } 1314 scan_info->request_ccb = request_ccb; 1315 scan_info->cpi = &work_ccb->cpi; 1316 /* If PM supported, probe it first. */ 1317 if (scan_info->cpi->hba_inquiry & PI_SATAPM) 1318 scan_info->counter = scan_info->cpi->max_target; 1319 else 1320 scan_info->counter = 0; 1321 1322 work_ccb = xpt_alloc_ccb_nowait(); 1323 if (work_ccb == NULL) { 1324 free(scan_info, M_CAMXPT); 1325 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1326 xpt_done(request_ccb); 1327 break; 1328 } 1329 goto scan_next; 1330 case XPT_SCAN_LUN: 1331 work_ccb = request_ccb; 1332 /* Reuse the same CCB to query if a device was really found */ 1333 scan_info = (ata_scan_bus_info *)work_ccb->ccb_h.ppriv_ptr0; 1334 /* If there is PMP... */ 1335 if ((scan_info->cpi->hba_inquiry & PI_SATAPM) && 1336 (scan_info->counter == scan_info->cpi->max_target)) { 1337 if (work_ccb->ccb_h.status == CAM_REQ_CMP) { 1338 /* everything else will be probed by it */ 1339 /* Free the current request path- we're done with it. */ 1340 xpt_free_path(work_ccb->ccb_h.path); 1341 goto done; 1342 } else { 1343 struct ccb_trans_settings cts; 1344 1345 /* Report SIM that PM is absent. */ 1346 bzero(&cts, sizeof(cts)); 1347 xpt_setup_ccb(&cts.ccb_h, 1348 work_ccb->ccb_h.path, CAM_PRIORITY_NONE); 1349 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1350 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1351 cts.xport_specific.sata.pm_present = 0; 1352 cts.xport_specific.sata.valid = CTS_SATA_VALID_PM; 1353 xpt_action((union ccb *)&cts); 1354 } 1355 } 1356 /* Free the current request path- we're done with it. */ 1357 xpt_free_path(work_ccb->ccb_h.path); 1358 if (scan_info->counter == 1359 ((scan_info->cpi->hba_inquiry & PI_SATAPM) ? 1360 0 : scan_info->cpi->max_target)) { 1361done: 1362 xpt_free_ccb(work_ccb); 1363 xpt_free_ccb((union ccb *)scan_info->cpi); 1364 request_ccb = scan_info->request_ccb; 1365 free(scan_info, M_CAMXPT); 1366 request_ccb->ccb_h.status = CAM_REQ_CMP; 1367 xpt_done(request_ccb); 1368 break; 1369 } 1370 /* Take next device. Wrap from max (PMP) to 0. */ 1371 scan_info->counter = (scan_info->counter + 1 ) % 1372 (scan_info->cpi->max_target + 1); 1373scan_next: 1374 status = xpt_create_path(&path, xpt_periph, 1375 scan_info->request_ccb->ccb_h.path_id, 1376 scan_info->counter, 0); 1377 if (status != CAM_REQ_CMP) { 1378 printf("xpt_scan_bus: xpt_create_path failed" 1379 " with status %#x, bus scan halted\n", 1380 status); 1381 xpt_free_ccb(work_ccb); 1382 xpt_free_ccb((union ccb *)scan_info->cpi); 1383 request_ccb = scan_info->request_ccb; 1384 free(scan_info, M_CAMXPT); 1385 request_ccb->ccb_h.status = status; 1386 xpt_done(request_ccb); 1387 break; 1388 } 1389 xpt_setup_ccb(&work_ccb->ccb_h, path, 1390 scan_info->request_ccb->ccb_h.pinfo.priority); 1391 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1392 work_ccb->ccb_h.cbfcnp = ata_scan_bus; 1393 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 1394 work_ccb->crcn.flags = scan_info->request_ccb->crcn.flags; 1395 xpt_action(work_ccb); 1396 break; 1397 default: 1398 break; 1399 } 1400} 1401 1402static void 1403ata_scan_lun(struct cam_periph *periph, struct cam_path *path, 1404 cam_flags flags, union ccb *request_ccb) 1405{ 1406 struct ccb_pathinq cpi; 1407 cam_status status; 1408 struct cam_path *new_path; 1409 struct cam_periph *old_periph; 1410 1411 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("xpt_scan_lun\n")); 1412 1413 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 1414 cpi.ccb_h.func_code = XPT_PATH_INQ; 1415 xpt_action((union ccb *)&cpi); 1416 1417 if (cpi.ccb_h.status != CAM_REQ_CMP) { 1418 if (request_ccb != NULL) { 1419 request_ccb->ccb_h.status = cpi.ccb_h.status; 1420 xpt_done(request_ccb); 1421 } 1422 return; 1423 } 1424 1425 if (request_ccb == NULL) { 1426 request_ccb = malloc(sizeof(union ccb), M_CAMXPT, M_NOWAIT); 1427 if (request_ccb == NULL) { 1428 xpt_print(path, "xpt_scan_lun: can't allocate CCB, " 1429 "can't continue\n"); 1430 return; 1431 } 1432 new_path = malloc(sizeof(*new_path), M_CAMXPT, M_NOWAIT); 1433 if (new_path == NULL) { 1434 xpt_print(path, "xpt_scan_lun: can't allocate path, " 1435 "can't continue\n"); 1436 free(request_ccb, M_CAMXPT); 1437 return; 1438 } 1439 status = xpt_compile_path(new_path, xpt_periph, 1440 path->bus->path_id, 1441 path->target->target_id, 1442 path->device->lun_id); 1443 1444 if (status != CAM_REQ_CMP) { 1445 xpt_print(path, "xpt_scan_lun: can't compile path, " 1446 "can't continue\n"); 1447 free(request_ccb, M_CAMXPT); 1448 free(new_path, M_CAMXPT); 1449 return; 1450 } 1451 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 1452 request_ccb->ccb_h.cbfcnp = xptscandone; 1453 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1454 request_ccb->crcn.flags = flags; 1455 } 1456 1457 if ((old_periph = cam_periph_find(path, "aprobe")) != NULL) { 1458 probe_softc *softc; 1459 1460 softc = (probe_softc *)old_periph->softc; 1461 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 1462 periph_links.tqe); 1463 softc->restart = 1; 1464 } else { 1465 status = cam_periph_alloc(proberegister, NULL, probecleanup, 1466 probestart, "aprobe", 1467 CAM_PERIPH_BIO, 1468 request_ccb->ccb_h.path, NULL, 0, 1469 request_ccb); 1470 1471 if (status != CAM_REQ_CMP) { 1472 xpt_print(path, "xpt_scan_lun: cam_alloc_periph " 1473 "returned an error, can't continue probe\n"); 1474 request_ccb->ccb_h.status = status; 1475 xpt_done(request_ccb); 1476 } 1477 } 1478} 1479 1480static void 1481xptscandone(struct cam_periph *periph, union ccb *done_ccb) 1482{ 1483 xpt_release_path(done_ccb->ccb_h.path); 1484 free(done_ccb->ccb_h.path, M_CAMXPT); 1485 free(done_ccb, M_CAMXPT); 1486} 1487 1488static struct cam_ed * 1489ata_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 1490{ 1491 struct cam_path path; 1492 struct ata_quirk_entry *quirk; 1493 struct cam_ed *device; 1494 struct cam_ed *cur_device; 1495 1496 device = xpt_alloc_device(bus, target, lun_id); 1497 if (device == NULL) 1498 return (NULL); 1499 1500 /* 1501 * Take the default quirk entry until we have inquiry 1502 * data and can determine a better quirk to use. 1503 */ 1504 quirk = &ata_quirk_table[ata_quirk_table_size - 1]; 1505 device->quirk = (void *)quirk; 1506 device->mintags = 0; 1507 device->maxtags = 0; 1508 bzero(&device->inq_data, sizeof(device->inq_data)); 1509 device->inq_flags = 0; 1510 device->queue_flags = 0; 1511 device->serial_num = NULL; 1512 device->serial_num_len = 0; 1513 1514 /* 1515 * XXX should be limited by number of CCBs this bus can 1516 * do. 1517 */ 1518 bus->sim->max_ccbs += device->ccbq.devq_openings; 1519 /* Insertion sort into our target's device list */ 1520 cur_device = TAILQ_FIRST(&target->ed_entries); 1521 while (cur_device != NULL && cur_device->lun_id < lun_id) 1522 cur_device = TAILQ_NEXT(cur_device, links); 1523 if (cur_device != NULL) { 1524 TAILQ_INSERT_BEFORE(cur_device, device, links); 1525 } else { 1526 TAILQ_INSERT_TAIL(&target->ed_entries, device, links); 1527 } 1528 target->generation++; 1529 if (lun_id != CAM_LUN_WILDCARD) { 1530 xpt_compile_path(&path, 1531 NULL, 1532 bus->path_id, 1533 target->target_id, 1534 lun_id); 1535 ata_device_transport(&path); 1536 xpt_release_path(&path); 1537 } 1538 1539 return (device); 1540} 1541 1542static void 1543ata_device_transport(struct cam_path *path) 1544{ 1545 struct ccb_pathinq cpi; 1546 struct ccb_trans_settings cts; 1547 struct scsi_inquiry_data *inq_buf = NULL; 1548 struct ata_params *ident_buf = NULL; 1549 1550 /* Get transport information from the SIM */ 1551 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 1552 cpi.ccb_h.func_code = XPT_PATH_INQ; 1553 xpt_action((union ccb *)&cpi); 1554 1555 path->device->transport = cpi.transport; 1556 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 1557 inq_buf = &path->device->inq_data; 1558 if ((path->device->flags & CAM_DEV_IDENTIFY_DATA_VALID) != 0) 1559 ident_buf = &path->device->ident_data; 1560 if (path->device->protocol == PROTO_ATA) { 1561 path->device->protocol_version = ident_buf ? 1562 ata_version(ident_buf->version_major) : cpi.protocol_version; 1563 } else if (path->device->protocol == PROTO_SCSI) { 1564 path->device->protocol_version = inq_buf ? 1565 SID_ANSI_REV(inq_buf) : cpi.protocol_version; 1566 } 1567 path->device->transport_version = ident_buf ? 1568 ata_version(ident_buf->version_major) : cpi.transport_version; 1569 1570 /* Tell the controller what we think */ 1571 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 1572 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1573 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1574 cts.transport = path->device->transport; 1575 cts.transport_version = path->device->transport_version; 1576 cts.protocol = path->device->protocol; 1577 cts.protocol_version = path->device->protocol_version; 1578 cts.proto_specific.valid = 0; 1579 if (ident_buf) { 1580 if (path->device->transport == XPORT_ATA) { 1581 cts.xport_specific.ata.atapi = 1582 ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_16) ? 16 : 1583 ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12) ? 12 : 0; 1584 cts.xport_specific.ata.valid = CTS_ATA_VALID_ATAPI; 1585 } else { 1586 cts.xport_specific.sata.atapi = 1587 ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_16) ? 16 : 1588 ((ident_buf->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12) ? 12 : 0; 1589 cts.xport_specific.sata.valid = CTS_SATA_VALID_ATAPI; 1590 } 1591 } else 1592 cts.xport_specific.valid = 0; 1593 xpt_action((union ccb *)&cts); 1594} 1595 1596static void 1597ata_action(union ccb *start_ccb) 1598{ 1599 1600 switch (start_ccb->ccb_h.func_code) { 1601 case XPT_SET_TRAN_SETTINGS: 1602 { 1603 ata_set_transfer_settings(&start_ccb->cts, 1604 start_ccb->ccb_h.path->device, 1605 /*async_update*/FALSE); 1606 break; 1607 } 1608 case XPT_SCAN_BUS: 1609 case XPT_SCAN_TGT: 1610 ata_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 1611 break; 1612 case XPT_SCAN_LUN: 1613 ata_scan_lun(start_ccb->ccb_h.path->periph, 1614 start_ccb->ccb_h.path, start_ccb->crcn.flags, 1615 start_ccb); 1616 break; 1617 case XPT_GET_TRAN_SETTINGS: 1618 { 1619 struct cam_sim *sim; 1620 1621 sim = start_ccb->ccb_h.path->bus->sim; 1622 (*(sim->sim_action))(sim, start_ccb); 1623 break; 1624 } 1625 case XPT_SCSI_IO: 1626 { 1627 struct cam_ed *device; 1628 u_int maxlen = 0; 1629 1630 device = start_ccb->ccb_h.path->device; 1631 if (device->protocol == PROTO_SCSI && 1632 (device->flags & CAM_DEV_IDENTIFY_DATA_VALID)) { 1633 uint16_t p = 1634 device->ident_data.config & ATA_PROTO_MASK; 1635 1636 maxlen = (p == ATA_PROTO_ATAPI_16) ? 16 : 1637 (p == ATA_PROTO_ATAPI_12) ? 12 : 0; 1638 } 1639 if (start_ccb->csio.cdb_len > maxlen) { 1640 start_ccb->ccb_h.status = CAM_REQ_INVALID; 1641 xpt_done(start_ccb); 1642 break; 1643 } 1644 /* FALLTHROUGH */ 1645 } 1646 default: 1647 xpt_action_default(start_ccb); 1648 break; 1649 } 1650} 1651 1652static void 1653ata_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_ed *device, 1654 int async_update) 1655{ 1656 struct ccb_pathinq cpi; 1657 struct ccb_trans_settings cur_cts; 1658 struct ccb_trans_settings_scsi *scsi; 1659 struct ccb_trans_settings_scsi *cur_scsi; 1660 struct cam_sim *sim; 1661 struct scsi_inquiry_data *inq_data; 1662 1663 if (device == NULL) { 1664 cts->ccb_h.status = CAM_PATH_INVALID; 1665 xpt_done((union ccb *)cts); 1666 return; 1667 } 1668 1669 if (cts->protocol == PROTO_UNKNOWN 1670 || cts->protocol == PROTO_UNSPECIFIED) { 1671 cts->protocol = device->protocol; 1672 cts->protocol_version = device->protocol_version; 1673 } 1674 1675 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 1676 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 1677 cts->protocol_version = device->protocol_version; 1678 1679 if (cts->protocol != device->protocol) { 1680 xpt_print(cts->ccb_h.path, "Uninitialized Protocol %x:%x?\n", 1681 cts->protocol, device->protocol); 1682 cts->protocol = device->protocol; 1683 } 1684 1685 if (cts->protocol_version > device->protocol_version) { 1686 if (bootverbose) { 1687 xpt_print(cts->ccb_h.path, "Down reving Protocol " 1688 "Version from %d to %d?\n", cts->protocol_version, 1689 device->protocol_version); 1690 } 1691 cts->protocol_version = device->protocol_version; 1692 } 1693 1694 if (cts->transport == XPORT_UNKNOWN 1695 || cts->transport == XPORT_UNSPECIFIED) { 1696 cts->transport = device->transport; 1697 cts->transport_version = device->transport_version; 1698 } 1699 1700 if (cts->transport_version == XPORT_VERSION_UNKNOWN 1701 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 1702 cts->transport_version = device->transport_version; 1703 1704 if (cts->transport != device->transport) { 1705 xpt_print(cts->ccb_h.path, "Uninitialized Transport %x:%x?\n", 1706 cts->transport, device->transport); 1707 cts->transport = device->transport; 1708 } 1709 1710 if (cts->transport_version > device->transport_version) { 1711 if (bootverbose) { 1712 xpt_print(cts->ccb_h.path, "Down reving Transport " 1713 "Version from %d to %d?\n", cts->transport_version, 1714 device->transport_version); 1715 } 1716 cts->transport_version = device->transport_version; 1717 } 1718 1719 sim = cts->ccb_h.path->bus->sim; 1720 1721 /* 1722 * Nothing more of interest to do unless 1723 * this is a device connected via the 1724 * SCSI protocol. 1725 */ 1726 if (cts->protocol != PROTO_SCSI) { 1727 if (async_update == FALSE) 1728 (*(sim->sim_action))(sim, (union ccb *)cts); 1729 return; 1730 } 1731 1732 inq_data = &device->inq_data; 1733 scsi = &cts->proto_specific.scsi; 1734 xpt_setup_ccb(&cpi.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE); 1735 cpi.ccb_h.func_code = XPT_PATH_INQ; 1736 xpt_action((union ccb *)&cpi); 1737 1738 /* SCSI specific sanity checking */ 1739 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 1740 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 1741 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 1742 || (device->mintags == 0)) { 1743 /* 1744 * Can't tag on hardware that doesn't support tags, 1745 * doesn't have it enabled, or has broken tag support. 1746 */ 1747 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1748 } 1749 1750 if (async_update == FALSE) { 1751 /* 1752 * Perform sanity checking against what the 1753 * controller and device can do. 1754 */ 1755 xpt_setup_ccb(&cur_cts.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE); 1756 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1757 cur_cts.type = cts->type; 1758 xpt_action((union ccb *)&cur_cts); 1759 if ((cur_cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1760 return; 1761 } 1762 cur_scsi = &cur_cts.proto_specific.scsi; 1763 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 1764 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1765 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 1766 } 1767 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 1768 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1769 } 1770 1771 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 1772 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 1773 int device_tagenb; 1774 1775 /* 1776 * If we are transitioning from tags to no-tags or 1777 * vice-versa, we need to carefully freeze and restart 1778 * the queue so that we don't overlap tagged and non-tagged 1779 * commands. We also temporarily stop tags if there is 1780 * a change in transfer negotiation settings to allow 1781 * "tag-less" negotiation. 1782 */ 1783 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 1784 || (device->inq_flags & SID_CmdQue) != 0) 1785 device_tagenb = TRUE; 1786 else 1787 device_tagenb = FALSE; 1788 1789 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 1790 && device_tagenb == FALSE) 1791 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 1792 && device_tagenb == TRUE)) { 1793 1794 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 1795 /* 1796 * Delay change to use tags until after a 1797 * few commands have gone to this device so 1798 * the controller has time to perform transfer 1799 * negotiations without tagged messages getting 1800 * in the way. 1801 */ 1802 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 1803 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 1804 } else { 1805 xpt_stop_tags(cts->ccb_h.path); 1806 } 1807 } 1808 } 1809 if (async_update == FALSE) 1810 (*(sim->sim_action))(sim, (union ccb *)cts); 1811} 1812 1813/* 1814 * Handle any per-device event notifications that require action by the XPT. 1815 */ 1816static void 1817ata_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 1818 struct cam_ed *device, void *async_arg) 1819{ 1820 cam_status status; 1821 struct cam_path newpath; 1822 1823 /* 1824 * We only need to handle events for real devices. 1825 */ 1826 if (target->target_id == CAM_TARGET_WILDCARD 1827 || device->lun_id == CAM_LUN_WILDCARD) 1828 return; 1829 1830 /* 1831 * We need our own path with wildcards expanded to 1832 * handle certain types of events. 1833 */ 1834 if ((async_code == AC_SENT_BDR) 1835 || (async_code == AC_BUS_RESET) 1836 || (async_code == AC_INQ_CHANGED)) 1837 status = xpt_compile_path(&newpath, NULL, 1838 bus->path_id, 1839 target->target_id, 1840 device->lun_id); 1841 else 1842 status = CAM_REQ_CMP_ERR; 1843 1844 if (status == CAM_REQ_CMP) { 1845 if (async_code == AC_INQ_CHANGED) { 1846 /* 1847 * We've sent a start unit command, or 1848 * something similar to a device that 1849 * may have caused its inquiry data to 1850 * change. So we re-scan the device to 1851 * refresh the inquiry data for it. 1852 */ 1853 ata_scan_lun(newpath.periph, &newpath, 1854 CAM_EXPECT_INQ_CHANGE, NULL); 1855 } else { 1856 /* We need to reinitialize device after reset. */ 1857 ata_scan_lun(newpath.periph, &newpath, 1858 0, NULL); 1859 } 1860 xpt_release_path(&newpath); 1861 } else if (async_code == AC_LOST_DEVICE && 1862 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 1863 device->flags |= CAM_DEV_UNCONFIGURED; 1864 xpt_release_device(device); 1865 } else if (async_code == AC_TRANSFER_NEG) { 1866 struct ccb_trans_settings *settings; 1867 1868 settings = (struct ccb_trans_settings *)async_arg; 1869 ata_set_transfer_settings(settings, device, 1870 /*async_update*/TRUE); 1871 } 1872} 1873 1874static void 1875ata_announce_periph(struct cam_periph *periph) 1876{ 1877 struct ccb_pathinq cpi; 1878 struct ccb_trans_settings cts; 1879 struct cam_path *path = periph->path; 1880 u_int speed; 1881 u_int mb; 1882 1883 mtx_assert(periph->sim->mtx, MA_OWNED); 1884 1885 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 1886 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1887 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1888 xpt_action((union ccb*)&cts); 1889 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1890 return; 1891 /* Ask the SIM for its base transfer speed */ 1892 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 1893 cpi.ccb_h.func_code = XPT_PATH_INQ; 1894 xpt_action((union ccb *)&cpi); 1895 /* Report connection speed */ 1896 speed = cpi.base_transfer_speed; 1897 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_ATA) { 1898 struct ccb_trans_settings_ata *ata = 1899 &cts.xport_specific.ata; 1900 1901 if (ata->valid & CTS_ATA_VALID_MODE) 1902 speed = ata_mode2speed(ata->mode); 1903 } 1904 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SATA) { 1905 struct ccb_trans_settings_sata *sata = 1906 &cts.xport_specific.sata; 1907 1908 if (sata->valid & CTS_SATA_VALID_REVISION) 1909 speed = ata_revision2speed(sata->revision); 1910 } 1911 mb = speed / 1000; 1912 if (mb > 0) 1913 printf("%s%d: %d.%03dMB/s transfers", 1914 periph->periph_name, periph->unit_number, 1915 mb, speed % 1000); 1916 else 1917 printf("%s%d: %dKB/s transfers", periph->periph_name, 1918 periph->unit_number, speed); 1919 /* Report additional information about connection */ 1920 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_ATA) { 1921 struct ccb_trans_settings_ata *ata = 1922 &cts.xport_specific.ata; 1923 1924 printf(" ("); 1925 if (ata->valid & CTS_ATA_VALID_MODE) 1926 printf("%s, ", ata_mode2string(ata->mode)); 1927 if ((ata->valid & CTS_ATA_VALID_ATAPI) && ata->atapi != 0) 1928 printf("ATAPI %dbytes, ", ata->atapi); 1929 if (ata->valid & CTS_ATA_VALID_BYTECOUNT) 1930 printf("PIO %dbytes", ata->bytecount); 1931 printf(")"); 1932 } 1933 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SATA) { 1934 struct ccb_trans_settings_sata *sata = 1935 &cts.xport_specific.sata; 1936 1937 printf(" ("); 1938 if (sata->valid & CTS_SATA_VALID_REVISION) 1939 printf("SATA %d.x, ", sata->revision); 1940 else 1941 printf("SATA, "); 1942 if (sata->valid & CTS_SATA_VALID_MODE) 1943 printf("%s, ", ata_mode2string(sata->mode)); 1944 if ((sata->valid & CTS_ATA_VALID_ATAPI) && sata->atapi != 0) 1945 printf("ATAPI %dbytes, ", sata->atapi); 1946 if (sata->valid & CTS_SATA_VALID_BYTECOUNT) 1947 printf("PIO %dbytes", sata->bytecount); 1948 printf(")"); 1949 } 1950 printf("\n"); 1951} 1952 1953